<?php
//=======================================================================
// File:	jpgraph_ttf.inc.php
// Description:	Handling of TTF fonts
// Created: 	2006-11-19
// Ver:		$Id: jpgraph_ttf.inc.php 1091 2009-01-18 22:57:40Z ljp $
//
// Copyright (c) Aditus Consulting. All rights reserved.
//========================================================================

// TTF Font families
define("FF_COURIER",10);
define("FF_VERDANA",11);
define("FF_TIMES",12);
define("FF_COMIC",14);
define("FF_ARIAL",15);
define("FF_GEORGIA",16);
define("FF_TREBUCHE",17);

// Gnome Vera font
// Available from http://www.gnome.org/fonts/
define("FF_VERA",18);
define("FF_VERAMONO",19);
define("FF_VERASERIF",20);

// Chinese font
define("FF_SIMSUN",30);
define("FF_CHINESE",31);
define("FF_BIG5",31);

// Japanese font
define("FF_MINCHO",40);
define("FF_PMINCHO",41);
define("FF_GOTHIC",42);
define("FF_PGOTHIC",43);

// Hebrew fonts
define("FF_DAVID",44);
define("FF_MIRIAM",45);
define("FF_AHRON",46);

// Dejavu-fonts http://sourceforge.net/projects/dejavu
define("FF_DV_SANSSERIF",47);
define("FF_DV_SERIF",48);
define("FF_DV_SANSSERIFMONO",49);
define("FF_DV_SERIFCOND",50);
define("FF_DV_SANSSERIFCOND",51);

// Extra fonts
// Download fonts from 
// http://www.webfontlist.com
// http://www.webpagepublicity.com/free-fonts.html

define("FF_SPEEDO",71);		// This font is also known as Bauer (Used for gauge fascia)
define("FF_DIGITAL",72);	// Digital readout font
define("FF_COMPUTER",73);	// The classic computer font
define("FF_CALCULATOR",74);	// Triad font

define("FF_USERFONT",90);
define("FF_USERFONT1",90);
define("FF_USERFONT2",91);
define("FF_USERFONT3",92);

// Limits for fonts
define("_FIRST_FONT",10);
define("_LAST_FONT",99);

// TTF Font styles
define("FS_NORMAL",9001);
define("FS_BOLD",9002);
define("FS_ITALIC",9003);
define("FS_BOLDIT",9004);
define("FS_BOLDITALIC",9004);

//Definitions for internal font
define("FF_FONT0",1);
define("FF_FONT1",2);
define("FF_FONT2",4);

//=================================================================
// CLASS LanguageConv
// Description: 
// Converts various character encoding into proper
// UTF-8 depending on how the library have been configured and
// what font family is being used
//=================================================================
class LanguageConv {
    private $g2312 = null ;

    function Convert($aTxt,$aFF) {
	if( LANGUAGE_GREEK ) {
	    if( GREEK_FROM_WINDOWS ) {
		$unistring = LanguageConv::gr_win2uni($aTxt); 
	    } else  {
		$unistring = LanguageConv::gr_iso2uni($aTxt);
	    }
	    return $unistring;
	} elseif( LANGUAGE_CYRILLIC ) {
	    if( CYRILLIC_FROM_WINDOWS && (!defined('LANGUAGE_CHARSET') || stristr(LANGUAGE_CHARSET, 'windows-1251')) ) {
		$aTxt = convert_cyr_string($aTxt, "w", "k"); 
	    }
	    if( !defined('LANGUAGE_CHARSET') || stristr(LANGUAGE_CHARSET, 'koi8-r') || stristr(LANGUAGE_CHARSET, 'windows-1251')) {
		$isostring = convert_cyr_string($aTxt, "k", "i");
		$unistring = LanguageConv::iso2uni($isostring);
	    }
	    else {
		$unistring = $aTxt;
	    }
	    return $unistring;
	}
	elseif( $aFF === FF_SIMSUN ) {
	    // Do Chinese conversion
	    if( $this->g2312 == null ) {
		include_once 'jpgraph_gb2312.php' ;
		$this->g2312 = new GB2312toUTF8();
	    }
	    return $this->g2312->gb2utf8($aTxt);
	}
	elseif( $aFF === FF_CHINESE ) {
	    if( !function_exists('iconv') ) {
		JpGraphError::RaiseL(25006);
//('Usage of FF_CHINESE (FF_BIG5) font family requires that your PHP setup has the iconv() function. By default this is not compiled into PHP (needs the "--width-iconv" when configured).');
	    }
	    return iconv('BIG5','UTF-8',$aTxt);
	}
	elseif( ASSUME_EUCJP_ENCODING &&
		($aFF == FF_MINCHO || $aFF == FF_GOTHIC || $aFF == FF_PMINCHO || $aFF == FF_PGOTHIC) ) {
	    if( !function_exists('mb_convert_encoding') ) {
		JpGraphError::RaiseL(25127);
	    }
	    return mb_convert_encoding($aTxt, 'UTF-8','EUC-JP');
	}
	elseif( $aFF == FF_DAVID || $aFF == FF_MIRIAM || $aFF == FF_AHRON ) {
	    return LanguageConv::heb_iso2uni($aTxt);
	}
	else 
	    return $aTxt;
    }

    // Translate iso encoding to unicode
    public static function iso2uni ($isoline){
	$uniline='';
	for ($i=0; $i < strlen($isoline); $i++){
	    $thischar=substr($isoline,$i,1);
	    $charcode=ord($thischar);
	    $uniline.=($charcode>175) ? "&#" . (1040+($charcode-176)). ";" : $thischar;
	}
	return $uniline;
    }

    // Translate greek iso encoding to unicode
    public static function gr_iso2uni ($isoline) {
	$uniline='';
	for ($i=0; $i < strlen($isoline); $i++)	{
	    $thischar=substr($isoline,$i,1);
	    $charcode=ord($thischar);
	    $uniline.=($charcode>179 && $charcode!=183 && $charcode!=187 && $charcode!=189) ? "&#" . (900+($charcode-180)). ";" : $thischar;
	}
	return $uniline;
    }

    // Translate greek win encoding to unicode
    public static function gr_win2uni ($winline) {
	$uniline='';
	for ($i=0; $i < strlen($winline); $i++) {
	    $thischar=substr($winline,$i,1);
	    $charcode=ord($thischar);
	    if ($charcode==161 || $charcode==162) {
		$uniline.="&#" . (740+$charcode). ";";
	    }
	    else {
		$uniline.=(($charcode>183 && $charcode!=187 && $charcode!=189) || $charcode==180) ? "&#" . (900+($charcode-180)). ";" : $thischar;
	    }
	}
	return $uniline;
    }

    public static function heb_iso2uni($isoline) {
	$isoline = hebrev($isoline);
	$o = '';

	$n = strlen($isoline);
	for($i=0; $i < $n; $i++) {
	    $c=ord( substr($isoline,$i,1) );
	    $o .= ($c > 223) && ($c < 251) ? '&#'.(1264+$c).';' : chr($c);
	}
	return utf8_encode($o);
    }
}

//=============================================================
// CLASS TTF
// Description: Handle TTF font names and mapping and loading of 
//              font files
//=============================================================
class TTF {
    private $font_files,$style_names;

//---------------
// CONSTRUCTOR
function TTF() {
$this->style_names=array(FS_NORMAL=>'normal',FS_BOLD=>'bold',FS_ITALIC=>'italic',FS_BOLDITALIC=>'bolditalic');
// File names for available fonts
$this->font_files=array(
FF_COURIER => array(FS_NORMAL=>'cour.ttf', FS_BOLD=>'courbd.ttf', FS_ITALIC=>'couri.ttf', FS_BOLDITALIC=>'courbi.ttf' ),
FF_GEORGIA => array(FS_NORMAL=>'georgia.ttf', FS_BOLD=>'georgiab.ttf', FS_ITALIC=>'georgiai.ttf', FS_BOLDITALIC=>'' ),
FF_TREBUCHE =>array(FS_NORMAL=>'trebuc.ttf', FS_BOLD=>'trebucbd.ttf', FS_ITALIC=>'trebucit.ttf', FS_BOLDITALIC=>'trebucbi.ttf' ),
FF_VERDANA => array(FS_NORMAL=>'verdana.ttf', FS_BOLD=>'verdanab.ttf', FS_ITALIC=>'verdanai.ttf', FS_BOLDITALIC=>'' ),
FF_TIMES => array(FS_NORMAL=>'times.ttf', FS_BOLD=>'timesbd.ttf', FS_ITALIC=>'timesi.ttf', FS_BOLDITALIC=>'timesbi.ttf' ),
FF_COMIC => array(FS_NORMAL=>'comic.ttf', FS_BOLD=>'comicbd.ttf', FS_ITALIC=>'', FS_BOLDITALIC=>'' ),
FF_ARIAL => array(FS_NORMAL=>'arial.ttf', FS_BOLD=>'arialbd.ttf', FS_ITALIC=>'ariali.ttf', FS_BOLDITALIC=>'arialbi.ttf' ) ,
FF_VERA => array(FS_NORMAL=>'Vera.ttf', FS_BOLD=>'VeraBd.ttf', FS_ITALIC=>'VeraIt.ttf', FS_BOLDITALIC=>'VeraBI.ttf' ),
FF_VERAMONO => array(FS_NORMAL=>'VeraMono.ttf', FS_BOLD=>'VeraMoBd.ttf', FS_ITALIC=>'VeraMoIt.ttf', FS_BOLDITALIC=>'VeraMoBI.ttf' ),
FF_VERASERIF => array(FS_NORMAL=>'VeraSe.ttf', FS_BOLD=>'VeraSeBd.ttf', FS_ITALIC=>'', FS_BOLDITALIC=>'' ) ,
FF_SIMSUN => array(FS_NORMAL=>'simsun.ttc', FS_BOLD=>'simhei.ttf', FS_ITALIC=>'', FS_BOLDITALIC=>'' ),
FF_CHINESE => array(FS_NORMAL=>CHINESE_TTF_FONT, FS_BOLD=>'', FS_ITALIC=>'', FS_BOLDITALIC=>'' ),
FF_MINCHO => array(FS_NORMAL=>MINCHO_TTF_FONT, FS_BOLD=>'', FS_ITALIC=>'', FS_BOLDITALIC=>'' ),
FF_PMINCHO => array(FS_NORMAL=>PMINCHO_TTF_FONT, FS_BOLD=>'', FS_ITALIC=>'', FS_BOLDITALIC=>'' ), 
FF_GOTHIC => array(FS_NORMAL=>GOTHIC_TTF_FONT, FS_BOLD=>'', FS_ITALIC=>'', FS_BOLDITALIC=>'' ), 
FF_PGOTHIC => array(FS_NORMAL=>PGOTHIC_TTF_FONT, FS_BOLD=>'', FS_ITALIC=>'', FS_BOLDITALIC=>'' ), 
FF_MINCHO => array(FS_NORMAL=>PMINCHO_TTF_FONT, FS_BOLD=>'', FS_ITALIC=>'', FS_BOLDITALIC=>'' ) ,
FF_ANGSA => array(FS_NORMAL=>'angsa.ttf', FS_BOLD=>'angsab.ttf', FS_ITALIC=>'angsai.ttf', FS_BOLDITALIC=>'angsaz.ttf' ) ,
);
}

//---------------
// PUBLIC METHODS	
    // Create the TTF file from the font specification
    function File($family,$style=FS_NORMAL) {
	$fam = @$this->font_files[$family];
	if( !$fam ) {
	    JpGraphError::RaiseL(25046,$family);//("Specified TTF font family (id=$family) is unknown or does not exist. Please note that TTF fonts are not distributed with JpGraph for copyright reasons. You can find the MS TTF WEB-fonts (arial, courier etc) for download at http://corefonts.sourceforge.net/");
	}
	$f = @$fam[$style];

	if( $f==='' )
	    JpGraphError::RaiseL(25047,$this->style_names[$style],$this->font_files[$family][FS_NORMAL]);//('Style "'.$this->style_names[$style].'" is not available for font family '.$this->font_files[$family][FS_NORMAL].'.');
	if( !$f ) {
	    JpGraphError::RaiseL(25048,$fam);//("Unknown font style specification [$fam].");
	}

	if ($family >= FF_MINCHO && $family <= FF_PGOTHIC) {
	    $f = MBTTF_DIR.$f;
	} else {
	    $f = TTF_DIR.$f;
	}

	if( file_exists($f) === false || is_readable($f) === false ) {
	    JpGraphError::RaiseL(25049,$f);//("Font file \"$f\" is not readable or does not exist.");
	}
	return $f;
    }

    function SetUserFont($aNormal,$aBold='',$aItalic='',$aBoldIt='') {
	$this->font_files[FF_USERFONT] = 
	    array(FS_NORMAL     => $aNormal,  
		  FS_BOLD	=> $aBold,   
		  FS_ITALIC	=> $aItalic,   
		  FS_BOLDITALIC	=> $aBoldIt ) ;
    }

    function SetUserFont1($aNormal,$aBold='',$aItalic='',$aBoldIt='') {
	$this->font_files[FF_USERFONT1] = 
	    array(FS_NORMAL     => $aNormal,  
		  FS_BOLD	=> $aBold,   
		  FS_ITALIC	=> $aItalic,   
		  FS_BOLDITALIC	=> $aBoldIt ) ;
    }

    function SetUserFont2($aNormal,$aBold='',$aItalic='',$aBoldIt='') {
	$this->font_files[FF_USERFONT2] = 
	    array(FS_NORMAL     => $aNormal,  
		  FS_BOLD	=> $aBold,   
		  FS_ITALIC	=> $aItalic,   
		  FS_BOLDITALIC	=> $aBoldIt ) ;
    }

    function SetUserFont3($aNormal,$aBold='',$aItalic='',$aBoldIt='') {
	$this->font_files[FF_USERFONT3] = 
	    array(FS_NORMAL     => $aNormal,  
		  FS_BOLD	=> $aBold,   
		  FS_ITALIC	=> $aItalic,   
		  FS_BOLDITALIC	=> $aBoldIt ) ;
    }

} // Class



?>
